Ed2k is basic communication server in eMule, you won’t find there any files, they're just used to search for files at other users’ PCs connected to server you use or another. Although you don't have to update serverlist before first connect. As soon as eMule connects to server, it offers many intelligent features such as exchanging source information between clients or automatic update of known servers. With every connection you get an ID (identification), which lets other servers recognize you. Below you can find safe eMule servers!